diff options
Diffstat (limited to 'gas')
| -rw-r--r-- | gas/ChangeLog | 7 | ||||
| -rw-r--r-- | gas/NEWS | 4 | ||||
| -rw-r--r-- | gas/config/obj-elf.c | 16 | ||||
| -rw-r--r-- | gas/doc/as.texinfo | 5 | ||||
| -rw-r--r-- | gas/testsuite/ChangeLog | 6 | ||||
| -rw-r--r-- | gas/testsuite/gas/elf/type.e | 1 | ||||
| -rw-r--r-- | gas/testsuite/gas/elf/type.s | 11 |
7 files changed, 48 insertions, 2 deletions
diff --git a/gas/ChangeLog b/gas/ChangeLog index 8f150fc..de98024 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,3 +1,10 @@ +2009-07-23 Ulrich Drepper <drepper@redhat.com> + + * config/obj-elf.c (obj_elf_type): Add code to support a type of + gnu_unique_object. + * doc/as.texinfo: Document new feature of .type directive. + * NEWS: Mention support for gnu_unique_object symbol type. + 2009-07-23 Nick Clifton <nickc@redhat.com> PR binutils/10379 @@ -1,4 +1,8 @@ -*- text -*- +* GNU/Linux targets now supports "gnu_unique_object" as a value in the .type + pseudo op. It marks the symbol as being globally unique in the entire + process. + * ARM assembler now supports .inst[.nw] pseudo-ops to insert opcodes specified in binary rather than text. diff --git a/gas/config/obj-elf.c b/gas/config/obj-elf.c index 3c72326..c9c7a9c 100644 --- a/gas/config/obj-elf.c +++ b/gas/config/obj-elf.c @@ -1665,8 +1665,8 @@ obj_elf_type (int ignore ATTRIBUTE_UNUSED) } } else if (strcmp (typename, "gnu_indirect_function") == 0 - || strcmp (typename, "10") == 0 - || strcmp (typename, "STT_GNU_IFUNC") == 0) + || strcmp (typename, "10") == 0 + || strcmp (typename, "STT_GNU_IFUNC") == 0) { const struct elf_backend_data *bed; @@ -1678,6 +1678,18 @@ obj_elf_type (int ignore ATTRIBUTE_UNUSED) typename); type = BSF_FUNCTION | BSF_GNU_INDIRECT_FUNCTION; } + else if (strcmp (typename, "gnu_unique_object") == 0) + { + const struct elf_backend_data *bed; + + bed = get_elf_backend_data (stdoutput); + if (!(bed->elf_osabi == ELFOSABI_LINUX + /* GNU/Linux is still using the default value 0. */ + || bed->elf_osabi == ELFOSABI_NONE)) + as_bad (_("symbol type \"%s\" is supported only by GNU targets"), + typename); + type = BSF_OBJECT | BSF_GNU_UNIQUE; + } #ifdef md_elf_symbol_type else if ((type = md_elf_symbol_type (typename, sym, elfsym)) != -1) ; diff --git a/gas/doc/as.texinfo b/gas/doc/as.texinfo index d1240bf..3af86f8 100644 --- a/gas/doc/as.texinfo +++ b/gas/doc/as.texinfo @@ -6360,6 +6360,11 @@ Mark the symbol as being a common data object. @itemx notype Does not mark the symbol in any way. It is supported just for completeness. +@item gnu_unique_object +Marks the symbol as being a globally unique data object. The dynamic linker +will make sure that in the entire process there is just one symbol with this +name and type in use. (This is only supported on Linux targeted assemblers). + @end table Note: Some targets support extra types in addition to those listed above. diff --git a/gas/testsuite/ChangeLog b/gas/testsuite/ChangeLog index a5d0bdb..a30164b 100644 --- a/gas/testsuite/ChangeLog +++ b/gas/testsuite/ChangeLog @@ -1,3 +1,9 @@ +2009-07-23 Ulrich Drepper <drepper@redhat.com> + + * gas/elf/type.s: Add unique global symbol definition. + * gas/elf/type.e: Add expected readelf output for global unique + symbol. + 2009-07-21 H.J. Lu <hongjiu.lu@intel.com> PR gas/10420 diff --git a/gas/testsuite/gas/elf/type.e b/gas/testsuite/gas/elf/type.e index 95d846a..2d26af8 100644 --- a/gas/testsuite/gas/elf/type.e +++ b/gas/testsuite/gas/elf/type.e @@ -3,4 +3,5 @@ .: 0+0 1 OBJECT LOCAL DEFAULT . object .: 0+1 1 TLS LOCAL DEFAULT . tls_object ..: 0+2 1 NOTYPE LOCAL DEFAULT . notype + ..: 0+3 1 OBJECT UNIQUE DEFAULT . unique_global ..: 0+1 1 (COMMON|OBJECT) GLOBAL DEFAULT COM common diff --git a/gas/testsuite/gas/elf/type.s b/gas/testsuite/gas/elf/type.s index 8620cc2..159bf6d 100644 --- a/gas/testsuite/gas/elf/type.s +++ b/gas/testsuite/gas/elf/type.s @@ -1,24 +1,35 @@ .text + .size function,1 .type function,%function function: .byte 0x0 + .size indirect_function,1 .type indirect_function,%gnu_indirect_function indirect_function: .byte 0x0 + .data + .type object,%object .size object,1 object: .byte 0x0 .type tls_object,%tls_object + .size tls_object,1 tls_object: .byte 0x0 .type notype,%notype + .size notype,1 notype: .byte 0x0 .comm common, 1 .type common,STT_COMMON + + .type unique_global,%gnu_unique_object +unique_global: + .byte 0x0 + .size unique_global,1 |